QuickSpecs

Cable Lock Support Yes, Kensington Cable Lock (optional): Locks side cover and secures chassis from theft
3 mm x 7 mm slot at rear of system
Universal Chassis Clamp
Lock Support
Yes (optional): Locks side cover and locks cables to chassis. Secures chassis from theft and allows multiple
units to be chained together when used with optional cable
Threaded feature at rear of system
Solenoid Lock and Hood
Sensor
Yes (optional)
The Solenoid Hood Lock eliminates the need for a physical key by making the chassis lockable through
software and a password. You can also lock and unlock the chassis remotely over the network. The Sensor
Kit detects when the access panel has been removed
Rear Port Control Cover Yes (optional);locks rear IO cables to prevent cable theft
Serial, Parallel, USB,
Audio, Network,
Enable/Disable Port
Control
Yes, enables or disables serial, USB, audio, and network ports
Removable Media
Write/Boot Control
Yes, prevents ability to boot from removable media on supported devices (and can disable writes to
media)
Power-On Password Yes, prevents an unauthorized person from booting up the workstation
Setup Password Yes, prevents an unauthorized person from changing the workstation configuration
3.3V Aux Power LED on
System PCA
Yes
NIC LEDs (integrated)
(Green & Amber)
Yes
CPUs and Heatsinks A T-15 Torx or flat blade screwdriver is needed to remove the CPU heatsink before the CPU can be
removed. CPU removal is tool-less
Power Supply Diagnostic
LED
Yes
Front Power Button Yes, ACPI multi-function
Rear Power Button Yes
Front Power LED Yes, blue (normal), red (fault)
Front Hard Drive Activity
LED
Yes, green
Front ODD Activity LED Yes
Internal Speaker Yes
System/Emergency ROM
Flash Recovery
Recovers corrupted system BIOS.
Cooling Solutions Air cooled forced convection, liquid cooling (optional)
Power Supply Fans 92 mm x 92 mm x 25 mm 4-wire (non-serviceable)
CPU Heatsink Fan 92 x 25 mm 5-wire PWM
Chassis Fan 92 mm x 92mm x 25 mm 4-wire PWM
Memory Heatsink Fan Yes, rear memory
HP Advanced System
Diagnostics Offline
Edition
HP Vision Diagnostics Offline Edition
The diagnostics utility enables you to perform testing and to view critical computer hardware and
software configuration information from various sources. This utility enables you to:
QuickSpecs
HP Z420 Workstation
System Technical Specifications
DA - 14261 North America — Version 36 — March 1, 2014 Page 23